The original implementation had several issues that prevented it from
building:
- Used buildInputs instead of nativeBuildInputs for makeWrapper
- Referenced wrong executable name (jellyfinmediaplayer vs jellyfin-desktop)
- Used wrapProgram which doesn't work with symlinks from symlinkJoin
Fixed by using makeWrapper directly with the correct executable path
after removing the symlink.
Also enabled jellyfinScaleFactor = 1.5 on boxy for UI scaling.
Fix syntax error by wrapping permittedInsecurePackages list with
lib.warn function call. The warning now properly displays during
evaluation about qtwebengine-5.15.19 being required for
jellyfin-media-player until it migrates to qt6.
